Great value package. Our Advent calendar includes 24 Christmas holiday bath rubber ducks with 24 different working rubber ducks,. They make a "quacking" sound when squeezed. Unique Design The countdown to Christmas is almost as fun as the holiday itself. As time goes on, your child's excitement will only escalate with the arrival of Santa. Fun, interactive Advent calendars for children help you make the most of this special time of year. The perfect advent calendar to get the job done on those cold December days. Endless fun. Kids will open a door each day for 24 days and discover something to delight them. This Advent calendar provides a lovely way for your children to welcome their favorite holiday year after year.